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Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Explain the conventions for displaying an ER schema as an ER diagram? An E-R Diagram scheme might describe certain constraints to that the contents of a database must conform.
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
How to reduce data redundency
Why DML is used for? DML is used to Manipulation and processing of database. DML is provided for manipulation & processing of database. (Data stored in the database is processed
WHAT IS DATABASE TECHNOLOGIES
Give a sample of the Dynamic Model. The sample of dynamic model is given below: Dynamic model for the car: Brake and Accelerator Brake or Applies Accelerator
various techniques of hashing?
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